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Method-for-controlling-a-ventilation-motor-of-a-microwave-oven

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Method for controlling a ventilation motor of a microwave oven

Details

Inventors: Jeong, Suk D.;
Assignee: Goldstar Co., Ltd. (Seoul, KR)
Primary Examiner: Leung; Philip H.
Assistant Examiner:
Attorney, Agent or Firm: Spencer & Frank

This invention relates to a method for controlling a ventilation motor of a microwave oven which is provided to control the ventilation motor automatically according to a setting time by a user. The method comprises steps for searching for presence of the timer key input, checking the present condition of operation of the ventilation motor if there was the timer key input, memorizing the ventilation motor operation period of time into the ventilation period of time memory part if the ventilation motor was under operation, checking the present condition of operation of the ventilation motor if there was no timer key input, checking up memories of the ventilation period of time memory part on a setting of the ventilation motor operation period of time, if the ventilation motor was under operation, checking finish of decrease of the preset operation period of time data of the ventilation motor while decreasing the preset data in the ventilation period of time memory means in every second if the operation period of time of the ventilation motor has been set, turning off the ventilation motor on finish of decrease of data as the result of the checking, and ventilation controlling in which the ventilation motor is turned off irrespective of the preset operation period of time of the ventilation motor if the ventilation motor turn off key is pressed while the ventilation motor is in operation.

DETAILED DESCRIPTION The object or this invention Is to provide a method or controlling a ventilation motor of a microwave oven which is provided to turn off the ventilation motor automatically at a preset time set by a user without pressing a ventilation motor turn off key.
These and other objects and features of this invention can be achieved by providing a method for controlling a ventilation motor of a microwave oven having ventilation on/off keys for turning on/off the ventilation motor, a timer key for setting operation period of time of the ventilation motor, and ventilation period of time memory part for memorizing a preset operation period of time, including steps for setting a ventilation period of time to set operation period of time of the ventilation motor through a timer key, a first ventilation controlling to operate the ventilation motor for a preset operation period of time of the ventilation motor and turn off the ventilation motor on lapse of the operation period of time, and a second ventilation controlling to turn off the ventilation motor irrespective of the preset operation period of time of the ventilation motor on application of the ventilation motor turn off key while operation of the ventilation motor.

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